I'll Make a Habit of it

Idol Shiratori Nagisa misses her old life of combat and martial arts, so she dresses up as a schoolboy and enrolls in the most roughed-up school she can find. She immediately develops a crush on one guy, who...thinks she's a boy... But it works out. Now she has to juggle Idol and schoolboy lives. All the while, wannabe Idols try to steal Nagisa's spotlight.